{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell type", "DNA", "RNA", "protein"], "input": "These results support a model for viral promoter switching during the initial stages of infection in which Wp activity leads to the expression of EBNA 2 , followed by activation of Cp through the EBNA 2 -dependent enhancer ."}
{"cell type": [], "DNA": ["viral promoter", "Wp", "Cp", "EBNA 2 -dependent enhancer"], "RNA": [], "protein": ["EBNA 2"]}